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FGDC CSDGM Metadata
FALSE
potomac_004_netsand
002
1723968.872600
1801333.192700
220656.970600
354708.355200
1
0.000
Projected
GCS_WGS_1984
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20230601
20094900
20230601
20094900
FGDC
Bureau of Economic Geology
10100 Burnet Rd. Bldg. 130
Austin
TX
78729
US
8-5
20230601
ArcGIS Metadata
1.0
BEG
10100 Burnet Rd. Bldg 139
Austin
Texas
78758
US
Enterprise Geodatabase Feature Class
0.000
Potomac Net Sand Isopachs
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>A number of studies present cross sections that include geophysical logs (gamma ray, spontaneous potential, resistivity) that can be used to derive a semiquantitative estimate of net sand thickness in the lower Potomac aquifer (Hansen, 1968; Brown and others, 1972; Cushing and others, 1973; Trapp and others, 1984). Anderson (1948) and Benson and others (1985) provided grain-size analysis results from cores that can also be used to evaluate net sand thickness in the lower Potomac aquifer. Otton and Mandle (1984) and Hansen (1984) provided information regarding areal distribution of sands within the Potomac Group, and these data were digitized</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Net Sand for Potomac Group
Hansen, H. J., 1984, Hydrogeologic characteristics of the Waste Gate Formation, a new subsurface unit of the Potomac Group underlying the eastern Delmarva Peninsula: Maryland Geological Survey Information Circular 39, 22 p.
*
Otton, E. G., and Mandle, R. J., 1984, Hydrogeology of the upper Chesapeake Bay area, Maryland with emphasis on aquifers in the Potomac Group: Maryland Geological Survey Report of Investigations No. 39, 62 p.
New Jersey
Delaware
Maryland
Lower Potomac Group
Lower Potomac Group
Maryland
Delaware
New Jersey
Access constraints: Restriction Code: other restrictions; Other Constraints: Access constraints: None
See access and use constraints information.
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potomac_004_netsand
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NETSAND_M_
NETSAND_M_
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source_organization
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String
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0
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hyperlink
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String
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resource_date
Date of Resource
String
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st_length(shape)
st_length(shape)
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